Im scared to start again. please please help?

okay... i broke up with my ex and he said it was cause im jelouse and i drove him away we were together 15 months ;( but now ive meet another guy. hes really muselly and a rower and gawjuzz but like i was with him in town and he knew all these girls and was chatting to them for ages completly forgetting I was there! I just am so unsure that im not good enough im so scared.. im not sure if im jelouse i feel so vunrable he says he wants to be with me.. but he hasnt talked about going out or like asking me out. i just dont wana get hurt. i feel so ugly, people say im not. im just really scared. help please